Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
sach tu » sach thu, cach tu, sach uu
sach ty » sach y, sach thu, xach tay
van cam » van nam, van lam, van cau
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach tu) or (sach ty)) nang x hoi. hieu van cam ((xuc van) or (duc van)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach ty)) nang x hoi. hieu van cam ((xuc van) OR (duc van)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (sach ty)) nang x hoi. hieu van cam ((xuc van) or (duc van)) hanh vi cuu tre*.